PR4353: Add support for \E as a character escape.
llvm-svn: 73153
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@ -56,6 +56,10 @@ static unsigned ProcessCharEscape(const char *&ThisTokBuf,
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PP.Diag(Loc, diag::ext_nonstandard_escape) << "e";
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ResultChar = 27;
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break;
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case 'E':
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PP.Diag(Loc, diag::ext_nonstandard_escape) << "E";
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ResultChar = 27;
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break;
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case 'f':
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ResultChar = 12;
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break;
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@ -135,7 +139,6 @@ static unsigned ProcessCharEscape(const char *&ThisTokBuf,
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PP.Diag(Loc, diag::ext_nonstandard_escape)
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<< std::string()+(char)ResultChar;
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break;
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// FALL THROUGH.
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default:
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if (isgraph(ThisTokBuf[0]))
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PP.Diag(Loc, diag::ext_unknown_escape) << std::string()+(char)ResultChar;
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@ -0,0 +1,21 @@
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// RUN: clang-cc -fsyntax-only -pedantic -verify %s
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int test['\\' == 92 ? 1 : -1];
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int test['\"' == 34 ? 1 : -1];
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int test['\'' == 39 ? 1 : -1];
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int test['\?' == 63 ? 1 : -1];
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int test['\a' == 7 ? 1 : -1];
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int test['\b' == 8 ? 1 : -1];
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int test['\e' == 27 ? 1 : -1]; // expected-warning {{non-standard escape}}
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int test['\E' == 27 ? 1 : -1]; // expected-warning {{non-standard escape}}
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int test['\f' == 12 ? 1 : -1];
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int test['\n' == 10 ? 1 : -1];
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int test['\r' == 13 ? 1 : -1];
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int test['\t' == 9 ? 1 : -1];
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int test['\v' == 11 ? 1 : -1];
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int test['\xa' == 10 ? 1 : -1];
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int test['\1' == 1 ? 1 : -1];
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int test['\(' == 40 ? 1 : -1]; // expected-warning {{non-standard escape}}
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int test['\{' == 123 ? 1 : -1]; // expected-warning {{non-standard escape}}
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int test['\[' == 91 ? 1 : -1]; // expected-warning {{non-standard escape}}
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int test['\%' == 37 ? 1 : -1]; // expected-warning {{non-standard escape}}
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